Round worms
Digestive system- Erika
Round worms have a definite digestive system that runs through their whole body. Included in digestion there is a mouth, a pharynx, an intestine, and an anus. This type of system is a major adaptive jump from the sac-type, single opening digestive system that is found in the flatworm.
Nervous system- James
Roundworms have two cords that send impulses to itself. Roundworms have a ganglial nervous system with an anterior neural ring that represents a primitive cephalization
Body plan- James
Picture- Both
Positive impact on humans- Erika
Round worm parasites affect most plant and animal species that makes them known as important agricultural pests.This can either be good or bad.
Negative impact on humans- Erika
1 interesting fact- James